'use strict';

require('./index.css');
require('page/common/nav/index.js');
require('page/common/header/index.js');
var _mm             = require('util/mm.js');
var _product        = require('service/product-service.js');
var _cart           = require('service/cart-service.js');
var templateIndex   = require('./index.string');

var page = {
    data : {
        productId : _mm.getUrlParam('productId') || '',
    },
    init : function(){
        this.onLoad();
        this.bindEvent();
    },
    onLoad : function(){
        // 如果没有传productId, 自动跳回首页
        if(!this.data.productId){
            _mm.goHome();
        }
        this.loadDetail();
    },		
    bindEvent : function(){
        var _this = this;
        // 图片预览
        $(document).on('mouseenter', '.p-img-item', function(){
            var imageUrl   = $(this).find('.p-img').attr('src');
            $('.main-img').attr('src', imageUrl);
        });
        
		 // count的操作
		 $(document).on('click', '.p-count-btn', function(){
		      var type        = $(this).hasClass('plus') ? 'plus' : 'minus',
		          $pCount     = $('.p-count'),
		          currCount   = parseInt($pCount.val()),
		          minCount    = 1,
		          maxCount    = _this.data.detailInfo.productDetailVo.stock || 1;
		          if(type === 'plus'){
		              $pCount.val(currCount < maxCount ? currCount + 1 : maxCount);
		          }
		          else if(type === 'minus'){
		              $pCount.val(currCount > minCount ? currCount - 1 : minCount);
		          }
		  });
        // 加入购物车
        $(document).on('click', '.cart-add', function(){	
			//alert(_this.data.detailInfo.user.stock);
            _cart.addToCart({
                productId   : _this.data.productId,
				tutorId     : _this.data.detailInfo.user.id,
                count       : $('.p-count').val()
            }, function(res){
                window.location.href = './result.html?type=cart-add';
            }, function(errMsg){
                _mm.errorTips(errMsg);
            });
        });
    },
    // 加载商品详情的数据
    loadDetail : function(){
        var _this       = this,
            html        = '',
            $pageWrap   = $('.page-wrap');
        // loading
        $pageWrap.html('<div class="loading"></div>');
        // 请求detail信息
        _product.getProductDetail(this.data.productId, function(res){
           // _this.filter(res);
            // 缓存住detail的数据
			//alert(res.user.id);
            _this.data.detailInfo = res;
            // render
            html = _mm.renderHtml(templateIndex, res);
            $pageWrap.html(html);
        }, function(errMsg){
            $pageWrap.html('<p class="err-tip">此商品太淘气，找不到了</p>');
        }
		
		);
    },
};
$(function(){
    page.init();
})